Tension adjusting device of TPU film production line

Abstract

This utility model relates to the technical field of TPU film production lines, specifically a tension adjustment device for a TPU film production line, comprising: a tensioning assembly, which includes a frame; and an adjustment assembly, located on the top of one side of the frame, including a mounting frame, an electric push rod, a connecting plate, and a movable column. The mounting frame is fixed at both ends of one side of the upper surface of the frame, and two sets of mounting frames are provided. The electric push rod is fixed on the other side of the upper surface of any set of mounting frames, the connecting plate is fixed to the output end of the electric push rod, and the movable column is fixed to the upper surface of the connecting plate. It also includes a reinforcement assembly located inside the mounting frame on one side. This utility model features a simple structure and reasonable design. The electric push rod provides rapid vertical adjustment capability, and the ball screw-driven limit column achieves precise locking. The combination of these two features not only ensures micron-level precision in tension adjustment but also increases the device's effective speed by 50%.

Description

Technical Field

[0001] This utility model relates to the field of TPU film production line technology, and in particular to a tension adjustment device for a TPU film production line. Background Technology

[0002] TPU is a polymer material formed by the reaction of diisocyanate, macromolecular polyol and chain extender. It has properties such as high tensile strength, wear resistance, cold resistance and oil resistance. It is widely used in medical, electronic and industrial fields. In the film production process, the high elasticity and extensibility of TPU require extremely high uniformity of tension. Therefore, a tension adjustment device is needed to adjust the tension to the required state, thereby ensuring product quality.

[0003] Existing structures for adjusting the height of the pressure roller mostly use a cylinder-driven rack and pinion system. Although this method improves stability through gear locking, it relies on a pneumatic system, which limits the adjustment speed and cannot be adapted to high-speed production lines. Furthermore, the gear and rack structure is relatively complex, resulting in high maintenance costs. To address this issue, the inventors designed a tension adjustment device for a TPU film production line. Utility Model Content

[0004] The purpose of this invention is to provide a tension adjustment device for a TPU film production line. It has a simple structure and reasonable design. The electric push rod provides rapid vertical adjustment capability, and the ball screw-driven limit column achieves precise locking. The combination of the two not only ensures the micron-level accuracy of tension adjustment, but also increases the effect speed of the device by 50%, thus solving the problems mentioned in the above technical background.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a tension adjustment device for a TPU film production line, comprising:

[0007] Tensioning assembly, the tensioning assembly including a frame;

[0008] The adjustment assembly, located at the top of one side of the frame, includes a mounting bracket, an electric push rod, a connecting plate, and a movable column. The mounting bracket is fixed at both ends of one side of the upper surface of the frame, and there are two sets of mounting brackets. The electric push rod is fixed on the other side of the upper surface of any set of mounting brackets, the connecting plate is fixed at the output end of the electric push rod, and the movable column is fixed on the upper surface of the connecting plate.

[0009] Furthermore, it also includes a reinforcement component located on one side inside the mounting frame. The reinforcement component includes a motor, a ball screw, a moving column, and a limiting column. The motor is fixed on one side of any set of inner surfaces of the mounting frame, the ball screw is fixed at the output end of the motor, the moving column is fixed on the outer surface of the ball screw nut, and the limiting column is fixed on the outer surface of the moving column.

[0010] Furthermore, the movable column has limiting holes inside, which are equidistantly distributed, and the limiting hole at the top is connected to a limiting column.

[0011] Furthermore, the tensioning assembly also includes a support plate, a conveying roller, and a mounting plate; the support plate is fixed to the top of the outer surface of the frame, the conveying roller is disposed on the inner side of the support plate, and the mounting plate is fixed to the outer surface of one side of the support plate.

[0012] Furthermore, the mounting plate has a movable groove inside, the movable column is slidably connected inside the movable groove, and the limiting column is connected through the inside of the mounting plate. The mounting plate is provided with a pressure roller inside.

[0013] Furthermore, a connecting groove is provided inside the other side of the mounting bracket, and a guide post is slidably connected inside the connecting groove. The outer surface of the guide post is fixed to the outer surface of the connecting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention provides a tension adjustment device for a TPU film production line. The tension adjustment device includes a tensioning component, an adjustment component, and a reinforcement component. The adjustment component includes a mounting frame, an electric push rod, a connecting plate, and a movable column. The reinforcement component includes a motor, a ball screw, a movable column, and a limiting column. The overall structure of the tension adjustment device is simple and reasonably designed. The electric push rod provides rapid vertical adjustment capability, and the limiting column driven by the ball screw achieves precise locking. The combination of the two not only ensures micron-level precision in tension adjustment but also increases the device's effective speed by 50%. After the electric push rod completes the height adjustment, the limiting column inserts into the limiting hole to form a mechanical rigid fixation. Combined with the torque self-locking function of the motor, it can effectively resist interference caused by production line vibration or sudden changes in film tension, making it highly practical. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a side view of the frame of this utility model;

[0019] Figure 3 This is a first-view structural diagram of the mounting bracket of this utility model;

[0020] Figure 4 This is a second-view structural diagram of the mounting bracket of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 11. Frame; 12. Support plate; 13. Conveyor roller; 14. Mounting plate; 15. Movable groove; 16. Pressure roller;

[0023] 21. Mounting bracket; 22. Electric actuator; 23. Connecting plate; 24. Movable column; 25. Connecting groove; 26. Guide column;

[0024] 31. Motor; 32. Ball screw; 33. Moving column; 34. Limiting hole; 35. Limiting post. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Please see Figures 1-4 As shown, this embodiment is a tension adjustment device for a TPU film production line, comprising:

[0029] Tensioning assembly, including frame 11;

[0030] The adjustment assembly is located on the top of one side of the frame 11 and includes a mounting bracket 21, an electric push rod 22, a connecting plate 23, and a movable column 24. The mounting bracket 21 is fixed at both ends of one side of the upper surface of the frame 11. There are two sets of mounting brackets 21. The electric push rod 22 is fixed on the other side of the upper surface of any set of mounting brackets 21. The connecting plate 23 is fixed at the output end of the electric push rod 22. The movable column 24 is fixed on the upper surface of the connecting plate 23.

[0031] Mounting bracket 21 provides a mounting base for electric push rod 22 and guide column 26. Electric push rod 22 serves as a power source, driving connecting plate 23 to move up and down through its output end, thereby realizing the electric adjustment of the height of pressure roller 16. Connecting plate 23 connects electric push rod 22 and movable column 24, transmitting the linear motion of push rod to movable column 24, which drives pressure roller 16 to rise and fall. Movable column 24 is slidably connected in movable groove 15 of mounting plate 14, and its vertical displacement directly changes the height of pressure roller 16, thereby adjusting the tension.

[0032] It also includes a reinforcement component located on one side inside the mounting bracket 21. The reinforcement component includes a motor 31, a ball screw 32, a moving column 33, and a limiting column 35. The motor 31 is fixed on one side of the inner surface of any set of mounting brackets 21, the ball screw 32 is fixed on the output end of the motor 31, the moving column 33 is fixed on the outer surface of the nut of the ball screw 32, and the limiting column 35 is fixed on the outer surface of the moving column 33.

[0033] Motor 31 serves as a power source to drive ball screw 32 to rotate. Ball screw 32 converts the rotational motion of motor 31 into the linear motion of nut, which in turn drives moving column 33 to move horizontally. Moving column 33 moves horizontally with ball screw 32, pushing limit column 35 into or out of limit hole 34.

[0034] The movable column 24 has a limiting hole 34 inside, the limiting holes 34 are evenly distributed, and the limiting column 35 is connected inside the top limiting hole 34;

[0035] The limiting hole 34 is used for the limiting post 35 to pass through the interior of the movable post 24. The limiting post 35 is used to lock the position of the movable post 24 to prevent the height of the pressing roller 16 from shifting due to external force or vibration.

[0036] The tensioning assembly also includes a support plate 12, a conveyor roller 13, and a mounting plate 14; the support plate 12 is fixed to the top of the outer surface of the frame 11, the conveyor roller 13 is disposed on the inner side of the support plate 12, and the mounting plate 14 is fixed to the outer surface of one side of the support plate 12.

[0037] The support plate 12 is used to mount the conveyor roller 13 and the mounting plate 14, providing basic support for the film conveying path. The conveyor roller 13 drives the film to move along the set path and cooperates with the pressure roller 16 to form a clamping area, transmitting power and maintaining film tension. The mounting plate 14 is used to guide the vertical movement of the movable column 24 to ensure the accuracy of the movement trajectory of the pressure roller 16.

[0038] The mounting plate 14 has an internal movable groove 15, the movable column 24 is slidably connected to the inside of the movable groove 15, and the limiting column 35 is connected through the inside of the mounting plate 14. The mounting plate 14 is provided with a pressure roller 16.

[0039] The movable groove 15 allows the movable column 24 to move inside the mounting plate 14, moving the movable space. The pressure roller 16, by adjusting the distance between itself and the conveying roller 13, changes the film clamping force, which directly affects the tension.

[0040] A connecting groove 25 is provided inside the other side of the mounting bracket 21. A guide post 26 is slidably connected inside the connecting groove 25. The outer surface of the guide post 26 is fixed to the outer surface of the connecting plate 23.

[0041] The connecting groove 25 provides a limiting path for the movement of the guide post 26, and the guide post 26 restricts the movement direction of the movable post 24 to prevent the connecting plate 23 from shifting or shaking during movement.

[0042] Working principle: When it is necessary to adjust the height of the pressure roller 16, the connecting plate 23 is moved up and down by the electric push rod 22, which drives the movable column 24 to move inside the movable groove 15, thereby changing the height of the pressure roller 16 inside the movable column 24, so that the distance between the conveying roller 13 and the pressure roller 16 changes, thus completing the tension adjustment.

[0043] When the electric push rod 22 needs to push the connecting plate 23, the motor 31 drives the ball screw 32 to rotate, and the movable column 33 connected to the nut of the ball screw 32 moves horizontally, thereby driving the limiting column 35 to disengage from the interior of the mounting plate 14. When the movable column 24 moves to the required height, the limiting column 35 is pushed to move horizontally in the above manner. With the design of the limiting hole 34, the movable column 24 can be stably fixed in different positions inside the movable groove 15, thereby fixing the pressing roller 16 at different heights, making the overall structure of the device more robust.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tension adjustment device for a TPU film production line, characterized in that, include: Tensioning assembly, the tensioning assembly including frame (11). The adjustment assembly is located on the top of one side of the frame (11) and includes a mounting bracket (21), an electric push rod (22), a connecting plate (23), and a movable column (24). The mounting bracket (21) is fixed at both ends of one side of the upper surface of the frame (11). There are two sets of mounting brackets (21). The electric push rod (22) is fixed on the other side of the upper surface of any set of mounting brackets (21). The connecting plate (23) is fixed at the output end of the electric push rod (22). The movable column (24) is fixed on the upper surface of the connecting plate (23).

2. The tension adjustment device for a TPU film production line according to claim 1, characterized in that, It also includes a reinforcement component located on one side inside the mounting bracket (21). The reinforcement component includes a motor (31), a ball screw (32), a moving column (33), and a limiting column (35). The motor (31) is fixed on one side of the inner surface of any set of the mounting brackets (21), the ball screw (32) is fixed at the output end of the motor (31), the moving column (33) is fixed on the outer surface of the ball screw (32) nut, and the limiting column (35) is fixed on the outer surface of the moving column (33).

3. The tension adjustment device for a TPU film production line according to claim 1, characterized in that, The movable column (24) has a limiting hole (34) inside. The limiting holes (34) are evenly distributed and the limiting column (35) is connected inside the limiting hole (34) at the top.

4. The tension adjustment device for a TPU film production line according to claim 1, characterized in that, The tensioning assembly also includes a support plate (12), a conveyor roller (13), and a mounting plate (14); the support plate (12) is fixed to the top of the outer surface of the frame (11), the conveyor roller (13) is disposed on the inner side of the support plate (12), and the mounting plate (14) is fixed to the outer surface of one side of the support plate (12).

5. The tension adjustment device for a TPU film production line according to claim 4, characterized in that, The mounting plate (14) has an open movable groove (15) inside, the movable column (24) is slidably connected to the inside of the movable groove (15), and the limiting column (35) is connected through the inside of the mounting plate (14). The mounting plate (14) is provided with a pressure roller (16).

6. The tension adjustment device for a TPU film production line according to claim 1, characterized in that, The mounting bracket (21) has a connecting groove (25) on the other side, and a guide post (26) is slidably connected inside the connecting groove (25). The outer surface of the guide post (26) is fixed to the outer surface of the connecting plate (23).

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